Triple

T4136893
Position Surface form Disambiguated ID Type / Status
Subject Chernobyl disaster E85175 entity
Predicate reactorType P3675 FINISHED
Object RBMK-1000
The RBMK-1000 is a Soviet-designed graphite-moderated, water-cooled nuclear power reactor type, best known for its role in the 1986 Chernobyl disaster and its significant safety design flaws.
E414458 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: RBMK-1000 | Statement: [Chernobyl disaster, reactorType, RBMK-1000]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: RBMK-1000
Context triple: [Chernobyl disaster, reactorType, RBMK-1000]
  • A. K15 pressurized water reactor
    The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
  • B. NRU reactor
    The NRU reactor was a Canadian research nuclear reactor at Chalk River Laboratories known for producing medical isotopes and supporting materials testing and reactor physics research.
  • C. K-West Reactor
    K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
  • D. K Reactor
    K Reactor is a decommissioned nuclear production reactor at the Savannah River Site in South Carolina that was used primarily for producing weapons-grade materials during the Cold War.
  • E. TRIGA research reactor
    The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: RBMK-1000
Triple: [Chernobyl disaster, reactorType, RBMK-1000]
Generated description
The RBMK-1000 is a Soviet-designed graphite-moderated, water-cooled nuclear power reactor type, best known for its role in the 1986 Chernobyl disaster and its significant safety design flaws.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: RBMK-1000
Target entity description: The RBMK-1000 is a Soviet-designed graphite-moderated, water-cooled nuclear power reactor type, best known for its role in the 1986 Chernobyl disaster and its significant safety design flaws.
  • A. K15 pressurized water reactor
    The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
  • B. NRU reactor
    The NRU reactor was a Canadian research nuclear reactor at Chalk River Laboratories known for producing medical isotopes and supporting materials testing and reactor physics research.
  • C. K-West Reactor
    K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
  • D. K Reactor
    K Reactor is a decommissioned nuclear production reactor at the Savannah River Site in South Carolina that was used primarily for producing weapons-grade materials during the Cold War.
  • E. TRIGA research reactor
    The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69aed935ccd881909dc61f81bcdb7a78 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69af02345c2c819090a9db6b375a7fc7 completed March 9, 2026, 5:24 p.m.
NED1 Entity disambiguation (via context triple) batch_69b576c75e5c8190acc4ee72cb574432 completed March 14, 2026, 2:55 p.m.
NEDg Description generation batch_69b57799f22481908cfda7e620a77187 completed March 14, 2026, 2:58 p.m.
NED2 Entity disambiguation (via description) batch_69b578003dd48190b9264fd834cffbdf completed March 14, 2026, 3 p.m.
Created at: March 9, 2026, 3:43 p.m.